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If you show a projector squarely at the screen or wall it should make a perfect rectangular display. If you shine it upwards the top of the display will become wider than the bottom, making a trapaziodal shape. It looks kind of like this:
.------------ .
..\ .your../..
...\ ..pix../...
....------- ....
This can easily happen when the projector is sitting on a desk, and it must be aimed upwards for the room to see it. This effect is called "keystoning". It is named from the stone at the top of a masonry arch which has this shape.
Manufacturers have included built in controls that allow you to adjust the image to compensate for this effect. So when aimed up, you adjust the "keystone" so that the top becomes narrower, making the image rectangular again, with the sides nicely parallel.
What else can I help you with?
How can computer and projector be useful in teaching?
Project and computer give graphical and visual aid which help children to retain better.You can download videos related to topic and show it to them.
How do you project something on your computer out on the wall?
You hook up a projector to your computer and aim the projector at the wall. Then you turn it on. You may need special software to use a projector with your computer, however in most cases, such software will come free with the projector.
How can you show a DVD from your computer onto an lcd projector to my class?
You will need a cable that runs from the PC to the LCD projector. They usually come with the projector. If you turn on the computer, then turn on the projector, then connect the cable, it should automatically detect and appear on the LCD projector. Otherwise, you will have to configure some computer settings to output to the LCD display.
Can a notebook computer be used with a data projector?
yes it can be used with projector.the projector will work as a second display.
What is the future of the overhead projector?
My guess is that with LCD and DLP projector coming down in price, we will be seeing less and less of the overhead. When a video projector is used with an interactive whiteboard or tablet the possibilities are limitless.
How much is a Keystone Projector model K-108 worth?
They sell on Ebay for $50.00 to $60.00
How do you change lamp keystone k108 movie projector?
To change the lamp in a Keystone K108 movie projector, first ensure the projector is powered off and unplugged. Allow it to cool down if it was recently used. Locate the lamp compartment, usually found on the bottom or side of the projector, and remove the cover by unscrewing any screws or releasing latches. Carefully take out the old lamp, insert the new lamp securely, and replace the cover before plugging the projector back in and turning it on.
Does the keystone 98 projector have sound?
The Keystone 98 projector does not have built-in speakers, so it does not produce sound on its own. To get audio, you will need to connect external speakers or an audio system via the available audio output options. This allows you to enhance your viewing experience with sound from an external source.
How do you load a reel to reel keystone projector?
To load a reel-to-reel Keystone projector, first, ensure the projector is powered off. Place the film reel on the supply side spindle and secure it, then thread the film through the projector's film path, following the designated guides and rollers. Finally, attach the take-up reel to the opposite side and ensure the film is taut before turning on the projector to begin playback. Always refer to the specific model’s manual for detailed threading instructions.
Where can one rent a projector?
One can rent a projector from ATS Rentals. Another place to rent a projector is Rentex. Rentex is known for their rentals of computer and audio visual needs.
Where can you purchase an 8MM Projector?
You can purchase an 8mm projector from a variety of places. You can try your local audio/visual store, or specialist electronics store. Failing that you can try eBay or Amazon.
How much is a keystone k-525 projector worth?
The value of a Keystone K-525 projector typically ranges from $50 to $150, depending on its condition, functionality, and included accessories. Vintage projectors like this can vary in price based on collector interest and market demand. To get a more accurate estimate, checking recent sales on platforms like eBay or specialized vintage electronics sites would be beneficial.
How do you spell projekture?
The likely word is "projector" (visual display device).
Is a flashlight like a projector?
A flashlight and a projector both emit light, but they serve different purposes. A flashlight focuses light into a beam to illuminate specific areas, while a projector casts images or videos onto a surface using a lens system to spread the light and create a larger display. Essentially, a flashlight is for direct illumination, whereas a projector is designed for displaying visual content.
What are examples of audio visual aids?
Three examples of audio visual aids would be a movie or some type of video, a PowerPoint presentation, and a classic presentation using a presentation board or an overhead projector.
What are three examples of audio visual aids?
Three examples of audio visual aids would be a movie or some type of video, a PowerPoint presentation, and a classic presentation using a presentation board or an overhead projector.
What is the meaning visual examination of the interior of a joints?
A visual examination of the interior of a joint is arthroscopy.
